LittleRunner890 LittleRunner890
  • 09-04-2024
  • Mathematics
contestada

Let C₁ and C₂ are circles defined by x²+y²−20x+64=0 and x²+yV+30x+144=0. The length of the shortest line segment PQ that is tangent to C₁ at P and C₂ at Q is
A. 18
B. 15
C. 20
D. 24

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